body{
    display: flex;
    flex-direction: column;
    align-items: center;
    header{
        width: 90%;
        line-height: 44px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #ccc;
        .text{
            font-size: 20px;
            font-weight: bold;
            color: #008cff;
            border-bottom: 2px solid #4fadfa;
        }
        .addition{
            width: 25%;
            height: 30px;
            color: #000;
            background: #4fadfa;
            border-radius: 20px;
        }

    }
    main{
        flex: 1;
        width: 90%;
        background: rgb(233, 163, 163);
        display: flex;
        .course{
            width: 100%;
            min-height: 200px;
            display: flex;
            flex-direction: column;
            background: #fff;
          
            .txt{
                line-height: 30px;
                flex-shrink: 18px;
                margin: 10px 0;
            }
            .img{
                width: 100%;
                height: 200px;
                background: url('../../assets/imgs/part4.png') no-repeat center;
                background-size: cover;
                box-shadow:1px 3px 15px 0px #000;
                border-radius: 15px;
                overflow: hidden;
                position: relative;
                .texts{
                    width: 100%;
                    height: 50px;
                    background: rgba(255, 255, 255,.8);
                    position: absolute;
                    left: 0;
                    bottom: 0;
                    padding: 0 20px;
                    font-size: 14px;
                    .txtTop{
                        font-size: 18px;
                    }


                }

            }

        }

    }
    footer{
        width: 100%;
        height: 60px;
        background: #fff;
        display: flex;
        justify-content: space-between;
        .footerBox{
            width: 15%;
            height: 100%;
            text-align: center;
            .iconfont{
            font-size: 35px;
            }

        }
        .circle{
            color: #008cff;
        }
    }
}